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Haiku weather in September (Maui, Hawaii)

Planning a trip to Haiku in September? This guide provides all the details you need.

In Haiku, September is characterized by high temperatures and moderate rainfall. Anticipate daytime temperatures around 28°C, while night temperatures can drop to 23°C. Often, it stands out as the year's warmest month. With this in mind, cool breathable fabrics will make navigating the heat much more bearable. Always be ready to embrace the warmth while staying cool and protected.

Haiku in September usually receives moderate rainfall, averaging around 63 mm for the month. When we look at the climate data from the last 30 years, we can expect around 8 days of rain.

The city usually sees around 271 hours of sunlight, indicating many sunny days.

If you're inclined towards comfortable temperatures and drier conditions, September is a prime time to visit Haiku. January, February, April, May, June, July, August, September, October, November and December typically offer the best circumstances. While March tends to showcase less optimal conditions.

For an in-depth look at the yearly conditions, visit our specialized Haiku climate page with graphs.

 

Haiku, monthly averages in September

Min TemperatureMin Temperature 23°C  
Max TemperatureMax Temperature 28°C  
Water TemperatureWater Temperature 27°C *  
Chance of RainChance of Rain 25%  
PrecipitationPrecipitation 63 mm  
Rainy daysRainy days 8 days  
HumidityHumidity 70% *  
WindspeedWindspeed 18 km/h *  
SunshineSunshine 271 hours *  
Percentage SunshinePercentage Sunshine 74% *  
* Data from: Kahului, the United States of America (11 KM, 7 Miles).

Where to go in Hawaii in September

Find out more about the weather in Hawaii in September and which places have the best weather conditions in this month.

Map not visible? Whoops sorry! Please refresh the page.
Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in Haiku in September?

It's going to be warm! Consider airy clothing, t-shirts, and other summer clothes. Shorts for men made of cotton or linen are good options for staying cool. With a water temperature of around 27°C this is a great month to swim so bring your swimwear.

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do in September.

Swimming
9/10
Cycling
8/10
Walking
8/10
Camping
8/10
Outdoor sports
8/10

Interested in more climate information?

This site provides you with all the information you need about the climate in Haiku.

Our site offers climate and forecast data for every country in the world. Are you going to Hawaii? On this website you can find historical weather averages for many cities in Hawaii. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.